Cannon



dfi-ALLEE- PATENTE Enron@ onARLES EDWARD HAUCK, von iDLEwooD, PENNSYLVANIA.

CANNON,

r.'55PIEBCILEICAI'ION forming part of Letters Patent No. 301,233, dated July 1, 1884.

Y Application filed March E29, 1884. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E.- HLAUCK, a .citizen of the United States,fresiding at Idlewood, in the county of Allegheny and State of y Pennsylvania, have invented a new and useful Cannon, of which thefollowing is a specication, reference being had to the accompanying drawings.

This invention has'relation to the manufac-` ture of cannons of large caliber with steel bores; and itconsists in the construction and novel/arrangement of parts, as will be hereinafter fully described, and particularly pointed out in the claim.

Figure 1 'is a longitudinal sectional view of my improved cannon. Fig. 2 is a longitudinal Sectional view of the steel bore as it appears before itis placed in the mold. Fig. 3 is a View inperspective of the steel breechplate; `and Fig! 4 is a longitudinal sectional view of the steel inside or bore section of the cannon anchored to have the molten metal cast around it, the outline of the cannon being also shown.

In casting large cannons-say from fty to one-hundred ton' cannonsif there is a flaw in the cannon after it is iinished, the entire cannon is lost, together with the time and labor of the men required to castso large a cannon. My aim is to prevent sov great a loss as that of Y the entire cannon, and to proceed in such a e Way that the steel inside, in which the bore lost A)if .there Should be a aw in it.

of the cannon is formed, will vbe all that is I aceomplishthis by constructingithe .cannon in the following manner: I rst cast asteel tube,

a, of the properlength, and with walls of from two to four inches .thick for a fifty or one-hundred tongumon the outside of which are left projections, as at a. This steel tube a is then vboredorplaned out accurately, and if there thus formed this vwould befall ofthe `gun that should be a aw or defect inside of the barrel Iwould be lost, together with the time `spent upon it.` `7I f 4it should prove to be sound and accurate,"it`ispacked into Sand, and a tube or cast-iron.

inserted in the sand to run water through to prevent the inside from running while the molten metal is being poured around it. It is then anchored inthe mold, the steel breechplate b anchored in place to close the breech end of the tube, and the molten metal cast around it, thus completing the cannon. The outside of the cannon may be either of steel Cast-iron will answer as well as steel, as all that wears is the steel tube, and a cast-iron outside will lessenythe cost of the` cannon. The projections a melt as the iron or steel is poured into the mold and run with it, so that the union of the steel tube and the cast metal is complete, andthe parts,`when finished, are integral. e

By this method of construction there is a very large saving of time, labor, and material in case a aw should occur in making-the cannon, and it is therefore the most economical cannon yet produced. The bore can be examined from both ends before the steel tube is placed in the mold, and itv can be deter? mined before the gun is` made whether it be accurate or not.

The steel barrel can be made of any desired thickness, and maybe used in light field-guns or in heavy guns for forts and ships.

Having thus fully described my invention,`

what I claim as new, and desire to secure by Letters Patent, is-

-In a cannon or other piece of ordnance, the' 

